Introduce some backward incompatibility with features unused in quicklisp:
* Don't create a temporary package every time you load a .asd;
instead, load everything from same package ASDF-USER,
that :use's asdf/common-lisp asdf/package asdf/interface
That's the Common Lisp way, what with COMMON-LISP-USER.
If you want a private package, use DEFPACKAGE or DEFINE-PACKAGE.
* operation-description is renamed action-description.
No one was using it in quicklisp, and no one was specializing it
except cl-protobufs, which I'll fix.
* component-properties and component-property are gone.
If you want a new property, create your own subclass of component.
Also, have a load-asd function with name in keyword arguments,
rather than load-sysdef function that requires the name.